The transcontinential railroad brought more money to the railroad companies because more people had access to the railroads, therefor using them more, and money was brought in. Not 100% sure, but that is my guess
Slavery started because people couldn't do their jobs themselves, so they had other people do it for them.
Answer:
The Immigration Act of 1924 limited the number of immigrants allowed entry into the United States through a national origins quota. The quota provided immigration visas to two percent of the total number of people of each nationality in the United States as of the 1890 national census.
Explanation:
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Julius and Ethel Rosenberg were charged with conspiring to pass secret information about their nuclear science to soviet agents. Julius and Ethel were also convicted of conspiracy to commit espionage on march twenty nine, nineteen fifty one. and they were executed on june nineteen, nineteen fifty three. they were accuse of passing information about the atomic bomb.